ICL3221ECAZ-T7A

Overview

The ICL3221ECAZ-T7A is a CMOS RS-232 transceiver from the ICL32xxE series, manufactured by Renesas Electronics. It features one driver and one receiver in a 16-pin SSOP surface-mount package. The device operates on a single power supply ranging from 3V to 5.5V. Key electrical parameters include a maximum propagation delay of 0.15μs at specified load capacitance, a maximum high-level output current of 1.0mA, and a maximum low-level output current of 1.6mA. It supports full-duplex communication with data rates up to 250kbps. The component complies with EIA/TIA-232, V.28/V.24 standards and offers 15kV ESD protection on RS-232 lines.

Feature Summary

• Integrated automatic power-down mode reduces operating current during idle periods
• Provides robust electrostatic discharge protection on RS-232 transceiver lines
• Ensures compliance with industry-standard RS-232 interface specifications

Applications

• Industrial control systems requiring serial communication interfaces
• Embedded devices utilizing microcontrollers for data transmission
• Portable equipment powered by single-supply voltage sources

Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm package type and temperature range. Confirm availability status as distribution channels may list obsolete or discontinued variants. Ensure the ordering code matches the required reel quantity and moisture sensitivity level for proper handling and storage procedures.

Selection Notes

Select this component when a single-channel RS-232 interface is required with low standby power consumption. The integrated capacitors simplify design compared to older generations. Verify that the 250kbps data rate meets system requirements and that the SSOP package fits the PCB layout constraints.

Part Context

This part belongs to the ICL32xxE family of RS-232 transceivers designed for 3V to 5.5V operation. The 'E' designation typically indicates an extended industrial temperature range variant. The 'T7A' suffix denotes tape and reel packaging for automated assembly processes within the broader ICL3221 product line.

Replacement Considerations

Direct substitutes include ICL3221EIAZ-T7A and ICL3221ECVZ-T. Verify pin compatibility and electrical characteristics before substitution. Cross-reference datasheets to ensure equivalent ESD protection levels and power-down functionality.